﻿import axios from "axios";
import { ElLoading, ElMessage } from "element-plus";
import { saveAs } from "file-saver";
import { getToken } from "@/utils/auth";
import errorCode from "@/utils/errorCode";
import { blobValidate } from "@/utils/baiyu";

const baseURL = import.meta.env.VITE_APP_BASE_API;
let downloadLoadingInstance;

export default {
    name(name, isDelete = true) {
        var url = baseURL + "/common/download?fileName=" + encodeURIComponent(name) + "&delete=" + isDelete;
        axios({
            method: "get",
            url: url,
            responseType: "blob",
            headers: { Authorization: "Bearer " + getToken() },
        }).then((res) => {
            const isBlob = blobValidate(res.data);
            if (isBlob) {
                const blob = new Blob([res.data]);
                this.saveAs(blob, decodeURIComponent(res.headers["download-filename"]));
            } else {
                this.printErrMsg(res.data);
            }
        });
    },
    resource(resource) {
        var url = baseURL + "/common/download/resource?resource=" + encodeURIComponent(resource);
        axios({
            method: "get",
            url: url,
            responseType: "blob",
            headers: { Authorization: "Bearer " + getToken() },
        }).then((res) => {
            const isBlob = blobValidate(res.data);
            if (isBlob) {
                const blob = new Blob([res.data]);
                this.saveAs(blob, decodeURIComponent(res.headers["download-filename"]));
            } else {
                this.printErrMsg(res.data);
            }
        });
    },
    zip(url, name) {
        var url = baseURL + url;
        downloadLoadingInstance = ElLoading.service({ text: "正在下载数据，请稍候", background: "rgba(0, 0, 0, 0.7)" });
        axios({
            method: "get",
            url: url,
            responseType: "blob",
            headers: { Authorization: "Bearer " + getToken() },
        })
            .then((res) => {
                const isBlob = blobValidate(res.data);
                if (isBlob) {
                    const blob = new Blob([res.data], { type: "application/zip" });
                    this.saveAs(blob, name);
                } else {
                    this.printErrMsg(res.data);
                }
                downloadLoadingInstance.close();
            })
            .catch((r) => {
                console.error(r);
                ElMessage.error("下载文件出现错误，请联系管理员！");
                downloadLoadingInstance.close();
            });
    },
    saveAs(text, name, opts) {
        saveAs(text, name, opts);
    },
    async printErrMsg(data) {
        const resText = await data.text();
        const rspObj = JSON.parse(resText);
        const errMsg = errorCode[rspObj.code] || rspObj.msg || errorCode["default"];
        ElMessage.error(errMsg);
    },
};
